OrientDB 1.7.1 发布了，这也是 1.7 RC2 版本。该版本主要包含如下改进：
Core:
supported retro-compatibility for databases created with OrientDB v1.5 or further (#1899)
improved performance on ORDER BY against indexes (#1843)
improved performance on RENAME CLASS (#1818)
Graph:
added support for vertex-centric traversal by using SQL (#2079)
SQL:
new UPSERT keyword to execute an INSERT or UPDATE based on a condition (#2032)
UPDATE now can ADD also to sub-document fields (#2031)
Indexes:
added support for external engines (#1774)
Studio:
new Query Timeline to the History, new Index Panel, Fixed many bug
项目主页：http://www.orientechnologies.com/orientdb/
下载地址：http://www.orientechnologies.com/download/
来自:开源中国社区
